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Transcription and RNA Processing

AP Biology· difficulty 3/5

The 5' cap on eukaryotic mRNA is

  • A

    A modified uracil (pseudouridine) added to the 5' end

  • B

    A modified adenine (N6-methyladenosine) added to the 5' end

  • C

    A modified guanine (7-methylguanosine) added to the 5' end

    check_circle
  • D

    A modified cytosine (5-methylcytosine) added to the 5' end

Explanation

The 5' cap aids ribosome recognition, mRNA stability, and nuclear export.

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